Lots of boulders and boulderable outcroppings, very few climbers. The area is popular with hikers, and you're more likely to see them on the many established trails in the area. The rock tends towards the slabby side, so if you're looking for steep boulders head somewhere else. While there aren't a lot of developed problems there is potential for more to be added, and the area has two difficult, high-quality slab boulder problems worth making the trip for.
Getting There
Approach on Reservation Road. Follow signs to the Fire Tower. Park in the obvious lot. Hike directly up the main trail. Begin exploring...
Off to the left of the fire tower trail there are a lot of boulders and interesting problems. The local Bryce Dalhaus spent quite a bit of time exploring and documenting problems in this area. The rock quality is generally not as good as the classic areas however a little cleaning would go a long way and there certainly won't be any crowds.
South Mountain has a lot of untapped rock. On the Main Fire Tower Trail, the first rock outcroppings appear about 5 mins up, followed by more rock that stretches up towards the summit. The South Ridge Trail heading north from the summit takes you through an area with short and tall walls and scattered boulders. Here you can find bouldering, trad cracks, and top rope climbs.
i haven't been out there in months, so i can't quite picture the boulder... if you're heading up the trail from the bottom, is it at the bottom of the hill on the left with 1 or 2 other boulders butting on the left of it? if so, i've never seen chalk on it